 body {
   min-width: 320px;
   max-width: 750px;
   width: 10rem;
   margin: 0 auto;
   line-height: 1.5;
   font-family: Arial, Helvetica;
   -webkit-box-sizing: border-box;
   /* 点击高亮我们需要清除 设置为transparent完成透明*/
   -webkit-tap-highlight-color: transparent;
   /* 在移动端浏览器默认的外观在ios上加上这个属性才能给按钮和输入框自定义样式*/
   -webkit-appearance: none;
   background-color: #f6f6f6;
 }

 /* 如果屏幕超过750px 按照750px设计稿走 */
 @media screen and (min-width: 750px) {
   html {
     font-size: 75px !important;
   }
 }

 * {
   margin: 0;
   padding: 0;
   box-sizing: border-box;
 }

 img,
 a {
   -webkit-touch-callout: none;
 }

 a {
   text-decoration: none;
   font-size: 0.333333rem;
 }

 input {
   outline: none;
 }

 li {
   list-style: none;
 }
 .fs30{
   font-size: .4rem;
 }

 .colorBlack{
   color: red!important;
   opacity: 1;
 }
.colorBlack_opacity{
  opacity: 0.5;
}

.not{
  position: fixed;
  top: 10.6667rem;
  width: 100%;
  background: none;
  font-size: .5333rem;
  text-align: center;
  color: gray;
  
}